Float arrangement for boats.



No. 725,264. PATBNTED APR. 14, 1903, W. M. VON MALEIN.

FLOAT ARRANGEMENT FOR BOATS.

APPLICATION FILED mm 16, 1902.

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WITNESSES:

ATTOQNE Vs.

UNITED STATES- PATENT Urricn \VILHELM MICHAEL VON MALEIN, OF HAMBURG,GERMANY.

FLOAT ARRANGEMENT FOR BOATS.

SPECIFICATION forming part of Letters Patent No. 725,264, dated April14, 1903. Application filed June 16,1902. Serial No. 111,910. (Nomodel.)

To all whom it may concern:

Be it known that I, WILHELM MICHAEL VON MALEIN, a subject of the Emperorof- Russia, residing at Hamburg, in the German Empire, have inventedcertain new and useful Improvements in Float Arran gemeuts for Boats andSimilar Vessels, of which thefollowing is a specification.

My invention relates to improvements in float devices for boats,particularly life-boats. The object of the improvements is to providesimple and effective means adapted to pre vent in a reliable manner thecapsizing of such boats when running in a heavy sea or passing a surfand which do not narrow or reducethe available space inside the boatwhether the said improved float device is in or out of its operativeposition.

With this end in view my invention consists in certain novel features ofconstruction and combinations of parts, as will be hereinafter fullydescribed, and pointed out in the claims with reference to theaccompanying drawing, whereon I have shown a perspective view of a boatprovided with my improved float device.

Similar letters of reference refer to like parts.

At each side of the boat there is provided an upright or standard a,serving each as a pivot for a socket or hub d, mounted thereon. Theupper ends of the pivots a may be conneoted by a cross-bar h. Attachedto each hub dis a horizontal or nearly horizontal arm or outrigger b,from the free end of which is suspended in any suitable manner a iioat-'body a. In the example shown the floatbodies 0 are constructed in theform and shape of a hollow drum or a roller, each rotatably mounted in asuitable bifurcation b of the corresponding outrigger b and provided onits circumference with a plurality of ribs or blades 0, the purpose ofwhich will be explained later on.

The Outriggers or arms I) are arranged at a sufficient height above theboat in order not to interfere with the crew or persons inside the boatand are of such a length that when the ontriggers b have been swungin-that is to say, brought into a position parallel or nearly parallelto the longitudinal or center line of the boatthe float-bodies careoutside the boat, behind its stern, as this is evident from the drawing,showing the outriggers and float-bodies in such inoperative or inposition.

In order to bring the float body or bodies into their operative or outposition, it is only necessary to swing out the outriggers 1) until theyare athwartships, or about so. In this out position the Outriggers maybe secured by lashing or otherwise fastening suitable projections orarms I) of the sockets d to the cross-bar h. The buoyancy of thefloat-bodies acting on the free ends of the Outriggers affords in eitherdirection a very efficient force or resistance against the capsizing ofthe boat. Owing to the comparatively great length of the Outriggers thefloat-bodies act upon long lever-arms and need therefore not beunproportionately large. When the boat is moving through the water, theblades 0 cause the float-bodies to rotate and roll along upon the water,whereby the resistance against headway of the boat is considerablyreduced.

The independently arranged Outriggers and floating devices aiford thegreat advan tags that when the boat is used as a ships life-boat it maybe prevented from capsizing in lowering down or hoisting by having thatoutrigger andfloat-bodyin out position which are clear of the shipsside. 4

Having fully described my invention, what I claim, and desire to secureby Letters Patout, is-

1. The combination of a boat with a vertical pivot a at each side of theboat, an outrigger b rotatably mounted on each pivot, and float-bodiesov rotatably mounted in the free ends of the said Outriggers,substantially as and for the purpose set forth.

2. The combination of a boat with a vertical pivot at each side, a crossconnection between the said pivots, a socket or hub on each pivot, anoutrigger attached to each hub, a float device suspended from the freeend of each outrigger, and an arm extending from correspondingoutrigger, substantially as and orth. for the purpose set forth.

3. The combination of a boat with two ineach hub in opposite directionto that of the l I), substantially as and for the purpose set l \VILHELHMICHAEL VON MALEIN.

5 dependent float devices each consisting of Winnesses:

pivot a, a hub d, an outrigger Z), a float-body MAX LEMOKE, (2 havingblades 0, a cross-bar h and an arm E. H. L. MUMMENHOFF.

